GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2007 🢒 TopKick C-Series (Conventional) C4/C5 🢒 Engine 🢒 Engine Electrical 🢒 Starter Replacement

Starter Replacement LG4

Removal Procedure
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .

    2. Object Number: 826460 Size: SH
  2. Disconnect the electrical connectors from the starter motor.
  3. Remove the nuts and the washers that attach the starter motor to the engine.

    4. Object Number: 826461 Size: SH
  4. Remove the starter motor from the engine.
  5. Clean the following components:
    6. • The starter motor terminals
    • The electrical connectors
  6. Inspect the pinion gear teeth for wear and damage.

Installation Procedure

    Object Number: 826461 Size: SH
  1. Connect the starter motor to the engine.

    2. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 826460 Size: SH
  2. Install the nuts and the washers that attach the starter motor to the engine.

    3. Tighten
    Tighten the starter motor mounting nuts to 82 N·m (60 lb ft).

  3. Connect the electrical connectors to the starter motor.
  4. Hold the hex-shaped base of the stud while tightening the positive battery cable nut.

    5. Tighten

    1. Tighten the positive battery cable nut to 21 N·m (16 lb ft).
    2. Tighten the solenoid bolt to 3.4 N·m (30 lb in).

    Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .

Starter Replacement LG5

Removal Procedure

    Object Number: 214989 Size: SH

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  2. Remove the starter ground cable from the starter. Refer to Battery Negative Cable Replacement .
  3. Remove the electrical connectors from the starter motor.
  4. Remove the starter motor bolts.
  5. Remove the starter motor from the engine.
  6. Clean the following components:
    7. • The starter motor solenoid terminals
    • The electrical connector terminals
  7. Inspect the starter ring gear teeth for wear and damage.

Installation Procedure

    Object Number: 214989 Size: SH
  1. Install the starter motor to the engine.

    2. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  2. Install the starter motor bolts.

    3. Tighten
    Tighten the starter motor bolts to 70 N·m (52 lb ft).

  3. Install the electrical connectors to the starter motor.

    4. Tighten

        • Tighten the battery positive cable nut to 30 N·m (22 lb ft).
        • Tighten the starter solenoid nut to 3 N·m (27 lb in).
  4. Install the starter ground cable. Refer to Battery Negative Cable Replacement .
  5. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .

Starter Replacement L18

Removal Procedure
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  2. Raise and suitably support the vehicle with safety stands. Refer to Lifting and Jacking the Vehicle .

    3. Object Number: 1857726 Size: SH
  3. Remove the starter heat shield and extension shield (C42 only) nuts (1, 2) and shields.

    4. Object Number: 742250 Size: SH
  4. Remove the starter motor solenoid lead nuts.
  5. If equipped with a automatic transmission, remove the positive cable and engine harness leads from the starter solenoid.

    6. Object Number: 742251 Size: SH
  6. If equipped with a manual transmission, remove the positive cable and engine harness lead from the starter solenoid.

    7. Object Number: 742244 Size: SH
  7. If equipped with a automatic transmission, remove the starter motor bolts.

    8. Object Number: 742243 Size: SH
  8. If equipped with a manual transmission, remove the starter motor bolts.
  9. Remove the starter motor.

Installation Procedure

    Object Number: 742243 Size: SH
  1. Install the starter motor.

    2. Notice: Refer to Fastener Notice in the Preface section.

  2. If equipped with a manual transmission, install the starter motor bolts.

    3. Tighten
    Tighten the starter motor bolts to 67 N·m (49 lb ft).


    Object Number: 742244 Size: SH
  3. If equipped with a automatic transmission, install the starter motor bolts.

    4. Tighten
    Tighten the starter motor bolts to 50 N·m (37 lb ft).


    Object Number: 742251 Size: SH
  4. If equipped with a manual transmission, install the positive cable and engine harness lead to the starter solenoid.

    5. Object Number: 742250 Size: SH
  5. If equipped with a automatic transmission, install the positive cable and engine harness leads to the starter solenoid.
  6. Install the starter motor solenoid lead nuts.

    7. Tighten

        • Tighten the positive cable nut to 10 N·m (89 lb in).
        • Tighten the harness lead nut to 2 N·m (18 lb in).

    Object Number: 1857726 Size: SH
  7. Install the starter heat shield and extension shield (C42) to the starter and engine.

    8. Tighten

        • Tighten the shield nuts (1, 2) to 3 N·m (35 lb in).
        • Tighten the harness lead nuts to 5 N·m (44 lb in).
  8. Lower the vehicle.
  9. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .

Starter Replacement LLY/LMM

Removal Procedure

Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.


    Object Number: 1869600 Size: SH
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  2. Remove the starter solenoid BAT terminal nut (3) from the starter.
  3. Remove the positive battery cable lead (2) and the engine wiring harness lead (1) from the starter.
  4. Remove the starter solenoid S terminal nut (4) from the starter.
  5. Remove the engine wiring harness lead (5) from the starter.

    6. Object Number: 1869601 Size: SH
  6. Remove the starter motor bolts.
  7. Remove the starter motor.

Installation Procedure

    Object Number: 1869601 Size: SH
  1. Install the starter motor.

    2. Notice: Refer to Fastener Notice in the Preface section.

  2. Install the starter motor bolts.

    3. Tighten
    Tighten the bolts to 85 N·m (62 lb ft).


    Object Number: 1869600 Size: SH
  3. Install the engine wiring harness lead (5) to the starter.
  4. Install the starter solenoid S terminal nut (4) to the starter.

    5. Tighten
    Tighten the nut to 3.3 N·m (29 lb in).

  5. Install the engine wiring harness lead (1) and the positive battery cable lead (2) to the starter.
  6. Install the starter solenoid BAT terminal nut (3) to the starter.

    7. Tighten
    Tighten the nut to 9 N·m (80 lb in).

  7. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .